[AMRadio] Black D-104
Mike Wells
mwells at gcea.coop
Fri Jan 16 17:39:42 EST 2004
Thanks guys, I use the D-104, unamplified mic on all my AM rigs with good
reports. I have an amplified D-104 that I havent tried on any of the gear.
Guess Ive got another one now. By-passing the amplifier will make it work
like any other D-104 I guess, so I'll check to see if it still has the
crystal element and put it to work.
Thanks for the links and advise.
Mike
-----Original Message-----
From: amradio-admin at mailman.qth.net
[mailto:amradio-admin at mailman.qth.net]On Behalf Of Donald Chester
Sent: Friday, January 16, 2004 10:26 AM
To: amradio at mailman.qth.net
Subject: Re: [AMRadio] Black D-104
>The Astatic Knight Eagle has all of the features of the Silver Eagle with a
>unique new finish. The main mic body is done in a luxurious black, while
>the
>press bar, grip bar, locking clamp, and grille screen are polished and
>bright
>brass plated. The Night Eagle, also, features an American Eagle embossed on
>the
>back of the D104 head.
>
These are both CB-ified versions of the classic D-104. The original didn't
have any eagles embossed on the back of the head or black or golden
finishes. It didn't even have an amplifier in the base. The simple
unamplified D-104 with external preamp gives superior performance to the
"power mike" versions. With 5-10 megohms of grid resistance, decent bass is
even obtainable.
With modern rigs, the power mic feature is necessary, because today's rigs
are typically wired for a 500-ohm impedance, which would look like a dead
short to the crystal element in the classic D-104. But for a classic AM rig
with xtal mic input, I would steer clear of the "eagles."
Don K4KYV
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